System Block Diagram
LC662508A, 662512A, 662516A
• When DT, ML, and DP are used, only the SIO channel can be used for serial I/O.
• The INT3, INT4, and INT5 pins can be used with internal functions.
Differences between the LC665XX Series and the LC6625XX Series
LC6650XB Series
Item
(Including the LC66599 evaluation chip)
LC6655XB Series
LC6625XX Series
System differences
• Hardware wait time (number of
cycles) when hold mode is cleared
65536 cycles
16384 cycles
About 64 ms at 4 MHz (Tcyc = 1 µs) About 16 ms at 4 MHz (Tcyc = 1 µs)
16384 cycles
About 16 ms at 4 MHz (Tcyc = 1 µs)
• Value of timer 0 after a reset
(Including the value after hold mode Set to FF0.
is cleared)
Set to FFC.
Set to FFC.
None (Tools are handled with
• DTMF generator
external devices.)
None
Yes
None (Tools are handled with
• Inverter array
external devices.)
None
Yes
• Three-value inputs/comparator
inputs
Yes
Yes
None
• Three-state output from P31
and P32
None
None
Yes
• Using P0 to clear halt mode
In 4-bit groups
In 4-bit groups
Can be specified for each bit.
• External extended interrupts
For INT3, INT4, and INT5.
(Tools are handled with external
devices.)
For INT3, INT4, and INT5.
INT3, INT4, and INT5 can be used
with the internal functions.
• INT2 functions
Shared with P90 (INT2)
(Tools are handled with external
devices.)
Shared with P90 (INT2)
Shared with P53 (INT2)
Differences in main characteristics
• Operating power-supply voltage
and operating speed (cycle time)
• LC66506B/08B/12B/16B
4.0 to 6.0 V/0.92 to 10 µs
• LC66E516/P516
4.5 to 5.5 V/0.92 to 10 µs
• 3.0 to 5.5 V/0.92 to 10 µs
• LC6655XA, 56XA
2.2 to 5.5 V/3.92 to 10 µs
3.0 to 5.5 V/1.96 to 10 µs
3.0 to 5.5 V/0.95 to 10 µs
• Pull-up resistors
P0, P1, P4, and P5: about 3 to 10 kΩ P0, P1, P4, and P5: about 3 to 10 kΩ P0, P1, P4, and P5: about 100 kΩ
• Port voltage handling
• P2, P3, P6, P7, and PA:
15V handling
• Others: Normal voltage
• P2, P3, P6, P7, and PA:
15V handling
• Others: Normal voltage
P2, P3, P61, P63, and PA:
15V voltage handling
Others: normal voltage
No. 5997-4/17